Dog Lips
An expression or analogy used to descripe the labial (lips) region of the female vagina, when purple on the inside and brownish black on the exterior.
"Yo,that bitch is so loose her snatch looks like dog lips."
Dog lip
A loose piece of a car's front fender, bumper, or skirt that flaps in the wind as it drives. Typically associated with minor accident damage that was hastily repaired.
Ronnie's Civic has a bad dog lip after he took out that garbage can.